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dc.contributor.author
Meller, Sonia
dc.contributor.author
Frossard, Emmanuel
dc.contributor.author
Spohn, Marie
dc.contributor.author
Luster, Jörg
dc.date.accessioned
2021-01-08T09:55:46Z
dc.date.available
2021-01-08T08:13:46Z
dc.date.available
2021-01-08T09:55:46Z
dc.date.issued
2020-09
dc.identifier.issn
2624-893X
dc.identifier.other
10.3389/ffgc.2020.535117
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/460452
dc.identifier.doi
10.3929/ethz-b-000460452
dc.description.abstract
Forests dominated by beech (Fagus sylvatica L.) cover large parts of Europe where they occupy a broad ecological niche in terms of soil fertility. This indicates a large potential to adapt to different soil conditions over long time periods. Recent changes in tree mineral nutrition across Europe raise the question to what degree beech can acclimate to changing soil conditions in the short term. In this study, we aimed at assessing the plasticity of root traits and rhizosphere properties of young beech trees from populations that are adapted to either high or low nutrient supply, when growing in soils differing in their fertility. We sampled beech saplings from two forest sites of contrasting nutrient supply, most distinctly in terms of phosphorus. We grew them for 2 years in rhizoboxes in mineral soil either from their own site or from the other site. We assessed the influence of the factors “plant origin” and “current soil” on root traits and rhizosphere properties. Fine root traits related to growth (biomass, length), architecture (branching), and morphology (diameter) responded strongly to the factor “current soil.” Provenance (factor “plant origin”) modified the response. The modifying effect was consistent with an influence of the plant status in those nutrients, which were not in sufficient supply in the soil. An additional genotypic difference in the sensitivity of the beech saplings to different soil nutrient supply could not be excluded. Fine root parameters normalized for length, mass, or volume (root tip density and frequency, specific root length and area, and root tissue density) did not differ among the treatments. Differences in percentage of mycorrhizal root tips and rhizosphere parameters related to phosphorus mobilization potential (pH, abundance of organic acid anions, and phosphatase activity) were small and mainly determined by the “current soil.” Provenance had only a minor modifying effect, possibly due to differences in the ability of the plants to transfer carbon compounds from the shoot to the root and the fungal partner. Our results indicate a high plasticity of young beech trees to adapt their root system to different soil nutrient supply, thereby also taking into account internal nutrient reserves.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Frontiers Media SA
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
Root growth
en_US
dc.subject
Root architecture
en_US
dc.subject
Root morphology
en_US
dc.subject
Mycorrhizal colonization
en_US
dc.subject
Rhizosphere
en_US
dc.subject
Potential phosphatase activity
en_US
dc.subject
Organic acid anions
en_US
dc.subject
Acid forest soils
en_US
dc.title
Plant nutritional status explains the modifying effect of provenance on the response of beech sapling root traits to differences in soil nutrient supply
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2020-09-25
ethz.journal.title
Frontiers in Forests and Global Change
ethz.journal.volume
3
en_US
ethz.pages.start
535117
en_US
ethz.size
18 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Lausanne
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02703 - Institut für Agrarwissenschaften / Institute of Agricultural Sciences::03427 - Frossard, Emmanuel / Frossard, Emmanuel
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02703 - Institut für Agrarwissenschaften / Institute of Agricultural Sciences::03427 - Frossard, Emmanuel / Frossard, Emmanuel
en_US
ethz.date.deposited
2021-01-08T08:13:53Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2021-01-08T09:55:54Z
ethz.rosetta.lastUpdated
2021-02-15T23:00:12Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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